The fact is, you cannot ignore the ability of what AI can do as an enormous database with different technical skills. Is PHP's exploit achievable? Yes. Is it difficult to achieve by humans? I would say yes as you need to understand different technologies in DEEP. And as I say, it…
It will just be more and more and more. Not only PHP but other languages. AI is searching vulnerabilities under humans' blindspot and it won't stop. So yes, I think it is time to learn how to deal with it instead of staying on the hate chain of technologies.